Baby Boy Swim Trunks Board Shorts with Matching Hat Board shorts style swim trunks feature bold sharks design on navy background. Matching Aussie style bucket hat has wide brim for protection from the sun. Side snaps allow the hat to be worn with sides up or down. Shorts have elastic waist, mesh liner. Fabric content: 100 % Polyester with UPF 50+. Protective Features: UPF 50+ Sun Protection.